U+1F20 "ἠ" Greek Small Letter Eta with Psili Unicode Character

U+1F20 "ἠ" Greek Small Letter Eta with Psili is a historic Greek letterform used in ancient polytonic orthography, combining the vowel eta (η) with a psili, or smooth breathing mark, which indicates the absence of an initial aspiration sound. This character typically appears at the beginning of a word in classical and medieval Greek texts, where the smooth breathing sign (resembling a small comma-like curve) sits above the letter. It represents a specific phonetic nuance in the Greek language, distinguishing it from its rough breathing counterpart, and is still employed in scholarly editions, liturgical writings, and linguistic studies today.